Finding the Fourth Proportional to 1,343,990.09, 1,854,705.51 and 740,378.09
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Solution
The fourth proportional to 1,343,990.09, 1,854,705.51 and 740,378.09 is: 1,021,721.31
Step by Step Solution
- Step 1: Write the proportion equation
1,343,990.09 : 1,854,705.51 = 740,378.09 : x - Step 2: Convert to fraction form
1,343,990.09/1,854,705.51 = 740,378.09/x - Step 3: Cross multiply
1,343,990.09x = 1,854,705.51 × 740,378.09 - Step 4: Simplify right side
1,343,990.09x = 1,373,183,313,732.75 - Step 5: Solve for x
x = 1,373,183,313,732.75/1,343,990.09 - Step 6: Final answer
x = 1,021,721.31
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.